Carton



Jan. 1G, 1950 Original Filed Aug. 20, 1945 W. P. FRANKENSTEIN CARTON 3Sheets-Sheet 1 rz8 'l F42. 65

W. P. FRANKENSTEIN Jan. 10, E950 CARTON original Filed Aug. 2o, 1945 3Sheets-Sheet 2 Jan.. l0 1950 .w. P. FRANKENSTEIN 21,494,234

` CARTON original Filed Aug. 2o, 1945 s Sheets-Sheet 5 IN V EN TOR.

' Patented Jan. l0, 1950 UNITED STATES rATENT ol-Flca cAa'roN William P.Frankenstein, Cincinnati, Ohio original application Auw zo, 1945. serialNo.

611,566. Divided and this application November 29, 194.6,I Serial No.712,877

' 15 Claiml.- (CL 229-34) 2 In the drawings: Fig. 1 is a plan view of'apartly folded blank for gamingV one of the cartons of the present inven-Fig. 2 is a perspective view of a partially erected carton from theblank of 1.

Fig. 3 is a transverse sectional view of the blank of Fig. 1 'as theblank is received from the carton pending application 611,566 filedAugust 20, 1945.

An object of this invention is -the provision of aknocked-down carton orbox embodying an improved construction, particularly, of the hollow orspaced apart wall thereof.

Another object of this invention is the provision forming machine andready for shipment to the user.

Fig. 4 is an extended plan view of a half blank showing a modificationtherein over the disclosure in Fig. l.

Fig. 5 is a perspective view of a'. partially erected carton resultingfrom the blank of Fig. 4.

Fig. 6 is a transverse sectional view through one 'end of the carton ofFig. 5 as seen from line 6-6 on said Fig. 5.

Fig. 'I is an extended plan view of -a blank from of an improvedconstruction in knocked-down which a cover or lid is formed tobe'utilized with c-artons wherein there is provided a step or shoulderintermediate the heighth of one or more walls of the carton. Y

Another object of the present invention is the provision of an improvedconstruction in knocked-down cartons such as set forth in the paragraphimmediately preceding and whether can be readily done by the userinstead of by lthey manufacturer as was the case with the vfew priorconstructions in which said scores or folds were broken.

A still furtherbject of the present invention is the provision of'animproved carton unit consisting of acarton proper and a lid or cover andwherein the lid or cover is locked in position after it has beenproperly positioned with respect to said carton proper.

Other objects and advantages of the present invention should be readilyapparent by reference tothe following specification considered in-conjunction with the accompanying drawings forming a part thereof, andit is to be understood that any modifications may be made in the exactstructural details there shown and described, within the scope of theappended claims, without depart- 55 'term sides is ing from or'exceedingthe spirit of the invention.

the carton of Fig. 5.

Fig. 8 is a perspective view of the underside of the cover formed fromthe blank of Fig. 7.

Fig. 9 is an extended plan view of a blank showing a furthermodification therein over the blank of Fig. 1.

Fig. 10 is a perspective view of a partially erected carton made fromthe blank of Fig. 9.

Throughout the several views of the drawings similar referencecharacters are employed to denote the same or similar parts.

Each of the several cartons disclosed in the drawings are formed from asingle blank'each of which is modified to produceits modication of thecarton and which cartons are basically the same. The common basis forthe several cartons of thev present invention consists in each having abottom or base member from the four sides of which extendwalls eachformed of an inner and an outer member. In each carton two of theopposite walls, generallyreferred to as side walls, have for a portionof their height. spaced apart inner and outer members 'with theremaining portions of said inner and outer wall members contacting oneanother with a top member at the upper end of the hollow portions of thewalls.

Specifically and referring to Figs. 1 to 3, iriclusive, the blankcomprises a rectangular base portion I5 bounded by score or fold linesI6, I1, I8 and I9. The score or fold lines I6 and I8 are of greaterlength than the score lines I1 and I9, and in accordance with usualpractice will be referred to as the sides of the carton although theremaining lines may be the said sides since the generallyreserved forthe longer oi the bounding walls.

The score of fold lines I6 and I6 respectively hlngedly connect to thebase I similar extensions and 2| and since these extensions aresubstantially identical only one of them will be described in detail.Accordingly, extension 2|! is provided with a plurality of score or foldlines 22, 23, 24,25 and 26 which divide the extension between the foldline I6 and end of the blank into panels 21, 28, 29, 30, 3| and 32. Thepanel 21 forms in the erected carton the outer wall member for the sidewalls and has its ends defined by score or fold lines 33 and 34 whichhingedly connect therewith corner pieces 35 and 36. The panel 28 formsthe upper portion of the side wall inner wall member and has its endsdefined by cut lines 31 and 38. The panel 29 forms the side wall topwall member in the erected carton and lies parallel with the base I5.The ends of the panel 29 are defined by cut lines 39 and 40. The panel30 forms the lower portion o the side wall inner wall member of thecomplete wall and has its ends defined by score or fold lines 4I and 42,and the said panel 30 is provided near its ends 4I and 42 with elongatedapertures 43 and 44 cooperating, as will later be made clear. with endwall locking lugs for securing the walls in erected positions. The panel3| is of substantially the same width and length as the panel 29 and hasits ends defined by cut lines 45 and 46 and this panel constitutes thebottom of the hollow side walls. The: panel 32 is ya glue flap of alength and a width substantially equal to that of the outer wall memberpanel 21 and to which it is attached by suitable glue or adhesive suchas 41 illustrated as carried by the inner surface of the outer wallmember 21. The ends of the glue flap 32 are defined by score or foldlines 48 and 49.

The score or fold lines 33, 4I and 48, at one end of the wall membersand glue ap, are in alignment with the base member score or fold line I1and the score or fold lines 34, 42 and 49. at the other ends of the wallmembers and glue flap are in alignment with the base score or fold lineI9. The glue flap 32 has through its ends score or fold lines 48 and 49hingedly connected therewith end wall vertical braces 56 and 5I whichlie in the erected carton, adjacent the end wall outer wall member. Thelower portion of the side wall inner wall member panel through its endsscores 4I and 42 has hingedly connected therewith end wall lateral andvertical braces 52 and 53. Said braces 52 and 53 have their otherdefined by score or fold lines 54 and 55 and act as hinged members forconnecting thereto end Wall vertical braces 56 and 51. The said end Wallvertical braces 50 and 56, and 5I and 51 have hingedly connected betweenthem end wall lateral braces 58 and 59- through score or fold lineswhich are in alignment with score or fold lines 25 and 25. Similar endwall lateral or transverse braces 60 and 6I are located between verticalbraces 56 and 51 and end wall vertical braces 62 and 53, being separatedby hinge or fold lines in alignment with an extension of score or foldline 22. The end wall vertical braces 62 and 63 are adjacent to cornerpieces 35 and 36 being separated therefrom by score lines in alignmentwith score line 22.

TheA corner pieces and 36 are each provided with a diagonal fold orscore lines 64 and 65 and form, as will later be made clear, a bellowscorner between the said side wall outer members and end wall outermembers. As will be noted the portion of each corner pieces 35' and 36between its respective diagonal fold lines 54 and 65 and the side wallouter member is provided with adhesive which engages a correspondingportion of the end wall vertical braces 50 and 5I.

The base panel I5 has hingedly connected to its ends through the scoreor fold lines I1 and I! similar extensions 96 and 81 which formshouldered or stepped end walls and since said extensions aresubstantially identical it is deemed sumcient if but one of them bedescribed, in detail. Accordingly, extension 66 is provided with aplurality oi score or fold lines 68, 69, 10 and 1 I, thereby providingbetween the score or fold line I9 and the end of the extension 66 panels12, 13, 14, 15, and 16.

The panel 12 is of a length equal to the width of the base blank and hasits ends dened by score or fold lines 11 and 18 which vare in alignmentwith the base scores I6 and I8 and said score or fold lines 11 and 18hingedly connecting to the said panel 12 the corner pieces 36. The panel13 has its ends defined by cut lines 19 and 80 which are in alignmentwith the score orl fold lines 11 and 16. The panel 'I3 is of -a lengthsubstantially equal to the width of the base member I5 and forms in theerected carton the top portion of the end wall inner Wal1 member and isdisposed between the side walls inner wall member top portions 28. Thepanel 14 is shorter in length than the panel 13 and is substantiallyequal to the distance of said carton between its side walls inner wallmembers top portions 28 and the panel 13 forms the top wall member orstep for the hollow end wall. The panel 15 in the erected carton formsthe lower portion of the end Wall inner wall member and is of a lengthsubstantially equal to the length of the panel 14 which is equal to thespace between the said carton side walls inner wall members lowerportions. 'Ihe panel 15 has projecting from it, near its outer ends,lugs 8| and 82 which are adapted to enter the elongated apertures 43 and44 for locking the carton walls in their erected positions. The panel 16in the erected carton forms a spacer for spacing the lowermost end ofthe end wall inner wall member lower portion from the corresponding endof the end wall outer wall member. The upper portion of the end wallinner Wall member panel 13 has projecting from it beyond the panel 14lugs or tabs 83 and 84 which, in the erected carton are projected behindthe top wall or shoulder of the side walls in holding the carton inerected position.

In the manufacture of the carton, a blank, as just described, isprovided cut to a contour as illustrated in Fig. land with adhesivethereon as illustrated at 41. The carton blank is then folded along thescore or fold line 25 thereby bringing the glue ap 32 and bottom sidewall panel 3| into face contact with top wall or shoulder panel 29 andinner wall member the upper and lower portions 30 and 28 of side wall.The blank is then further folded on the score or fold line 22 therebybringing the glue ap 32 and adjacent brace portions 50 and 5I intoengagement with the adhesive 41 of outer wall member 21 and cornerpieces 35 and 36. In other words both side wall extensions 20 and 2| arenow folded to the position in which the extension 2| is illustrated. Atransverse cross section of this folded blank is as illustrated in Fig.3 and it is in this position that the blank is shipped to the user.

It should be noted that the side Wall bottom panels 3| are not securedto the carton bottom or base member I5 but are free thereof and that theglue flap 32 is the only securing factor of the side walls.

When the user desires ,to utilize the carton as for the reception ofmerchandise to -be shipped or displayed therein, he lneed only raise thefolded side wall iiaps from their outwardly Hextending positions to aposition normal to or vertical of the carton base. -In the event thatdifculty is encountered in breaking the scores so that the lower portionof the inner wall mem ber, the outer wall member, the step or wallmember and the bottom wall member take their proper position of beingnormal to one another, the said scores may be broken prior to the set upof the carton. This is illustrated in phantom lines at 85 and 8S in Fig.3. In other words while the blank is still in the extended position thebottom wall member may be lifted and swung outwardly thereby raising thelower portion of inner wall member from its -iiattened position andoutwardly swinging the shoulder or top wall member. With the said sidewall members in the position of Fig. 3 they may be swung to be normal tothe carton base or bottom.

With the side wail members in their erected position as illustrated inFig. 2 the end wall braces may now be swung to be transverse of thebottom member or panel i5 as illustrated in Fig. 6. Due to theconnection of a portion oi each bellows corner to the end wall verticalbrace member 5t) or 5i, the shifting of the said braces will cause anupward swinging of the end wall outer member or panel l2 so that whenthe said braces are in their transverse position the end wall extensionis vertical or normal to the bottom or base member i5. The remainingpanels of the end wall extension may now be folded to be normal to oneanother thereby enclosing the braces and the end wall members locked byengagement of the lugs ti and 82 in the elongated apertures 13 and itand the intersection of the tabs or lugs d3 and 8S beyond the shouldersor steps 29 against the edges 3Q and #it thereof.

It will be noted particularly from Fig. 6 that the end wail braces arebox-like in cross' section for vertically and laterally spacing andbracing the end wall inner and outer members. At the same time the endwall inner member is prevented from displacement due to pressure fromthe interior of the carton. It will further be noted that there has beenprovided a carton in which the scores may -be pre-broken resulting ingreater ease of assembly and less pressure required to assemble thecarton. It should also be noted that by the present construction theside walls need not be set up to their iinal position before the raisingof the end wall, in iact ease in erecting the carton will be experiencedif when the side walls are brought to a partial erected position the endwall is likewise acuated and both the side walls and outer end wallmember brought to a nal position simultaneously.

It should .be noted that the upper portion, of the side wall inner wallmember has glue or adhesive 81 thereon whereby it is secured to one faceof the glue flap 32 and through which said side wall inner wall memberpanel 28 is secured to the side wall outer wall member panel 21.

The modification of the invention illustrated in Figs. 4 and 5 is quitesimilar to the carton illustrated in Figs. l'to 3 except that the stepor shoulder is placed on the outside of the carton instead of on theinside thereof. To accomplish this the side wall inner wall member panelis formed tothe full height of the carton while the outer wall member'lis made up of two panel portions, 88 and 89 separated from one anotherby panel portion 90 which is -deilned by the fold or score lines Si and92. In other words the side wall top wall member isshifted to'providethe outer wall member with an upper and a lower portion. A furthermodification occurs in the formation of the side walls extensions inthat the glue aps t2 are shortened to correspond with the width of, thelower portions of the outer wall member panelsd. The end wall braces maybe left to have the same contour as that of Fig. l and is so illustratedin connection with side wall extension tu' of Fig. 1. The braces areillustrated in connection lwith side extension 2i Aof Fig. i showsthe`lateral brace panel 93 as at the height of the outer wall lowerportion and will therefore extend intermediate the height of the endwall inner and outer wall members as clearly illustrated in the righthand haii of Fig. 6. it should be noted, however, that these braces maybe formed to be the saine at all four corners of the blank or they maybe used as illustrated, one having a transverse brace at the lower endthereof with a second trans verse brace either at the top orintermediate the top and bottom. The end wall extensions of thismodication in Fig. el are formed to provide end wall of uniformthickness throughout their height instead of having a step or shoulderin= termediate this height.

Accordingly the end wall extensions bt and tl are each modified to theextent that the wall inner wall member is formed from a. single panelinstead of an upper portion panel and a lower portion panel. Theextension ed therefor has hingedly connected to its outer wall memberpanel l2 through the score or fold line @t a panel tl which in theerected carton forms the end wall top wall member, the other side of thepanel iid is dened by a fold or score line t5 which hingedly connectsthereto the end wall inner wall member panel et. The other end of thepanel @e is defined by the score or fold line li outward of which is thespacer iiap or panel it. The inner wall member panel @d is of less widththan the outer wall member panel l2 and the top wall member panel has awidthadjacent the said outer wall members panel equal thereto while itsother side, adjacent the inner wall member panel is of a width equal tothe width of thesaid inner wall member. For this reason the ends of saidtop wall. panel Sti are contoured or biased as at el and te, with saidends, in the erected carton, overlying the side walls exterior shouldersor steps 2S i'n a plane thereabove.

The blank of Fig. 4 is shipped to the user in substantially the samecondition as that of Fig. 1 and as illustrated in Fig. 3 and this blankis set up in substantially the same manner.

The resulting carton, however, see Fig. 5, has end walls of uniformthickness throughout their height while the side walls are thicker attheir lower portions than at their upper portions with the stepexteriorly of the carton sides.` This construction results in the endwall top wall ing a body portion 99 the opposite ends of which aresimilarly subdivided by score or fold lines |00, |02 and |08 to provideon the body portion panels |04, |05, |08 and |01. The' said panels arefolded to be normal to one another with the panel |01 acting as a glueflap for attaching the rectangular tube, resulting from the folding ofthe panels, to the cover body portion 00. It will be noted that thepanels and |01 are shorter than the panels |04 and |00l therebyresulting in tongues |00 and |09 at the ends of the tubes. It will alsobe noted that the said tongues extend from the inner wall of said tube.The resulting cover is as illustrated in Fig. 8 being shipped to theuser with the tubes flattened inwardly of the cover body portion 90.

In order for the user to apply the lid or cover to the carton the tubesare bent on their score or fold lines to be normal to the said bodyportion 99. This results in the tongues |08 and |09V having providedbetween them and the body portion a space ||0 which is substantiallyequal to the thickness of the board from which the carton of Fig. 5 isformed. The lid is applied by inserting the projecting portions of theend walls top members, or contoured portions Bland 90, beneath thefingers |08 and |09 at one side of the lid or cover and slightlyupwardly bending or raising the other side of the cover as illustratedin phantom lines in Fig. 5. The upwardly raised portion of the cover orlid is then lowered to bring the body portion of the cover against'theend walls top members 96. As the fingers at the free end of the cover orlid engage the projections of the end wall top members they are pressedinwardly until they are beneath said projections whereupon they springto their normal position beneath said projections and thereby lock thecover in position. This is illustrated clearly in Fig. 6 where itdiscloses the fingers |08 and |09 of the cover as beneath the end wallstop wall projections.

The remaining modification illustrated in Figs. 9 and 10 is directed toa carton in which the side walls are provided with a step or shoulderinteriorly of the carton, with, however the end walls of doublethickness instead of appreciable width. In this construction the endwalls merely consist of an Ainner and an outer wall member with no topwall therebetween and the vertical and transverse braces of theconstruction heretofore described are eliminated. Accordingly, the endwall extension 66" and 6'!" of Fig. 9 consists essentially of panels.lll and ||2 divided from one another by a score or fold line ||3. Thepanel constitutes the end wall outer wall member while the panel H21constitutes the inner wall member and in order to lock the said wallmembers in operative positions the said inner wall member is providedwith downwardly projecting lugs ||i4 and ||5 to engage behind the sidewall shoulder and is further provided with laterally projecting legs lI6 and |I`| to engage behind the lower portion of the inner wall member.

The blank of Fig. 9 is shipped to the user in the same manner as theblanks heretofore described and the set up is substantially the same.

It is lsometimes desirable to have the inner surface of the set upcarton or box part (lid) the same as the outer surface particularly whenprinted. To accomplish this the inner wall member ||2, see extension 66'-of Fig. 9, may have hingedly connected thereto as by a score or foldline IIB a panel ||9 of an area substantially equal to the carton basepanel i5. To assist in retaining the extension ||9 in position, it hasprojecting from its sides locking tongues |and |2| f each adapted toenter a similar slot |22, see Fig. 5 10, formed by a cut |23 in theinnerwall member lower portion 30.

From the foregoing it will be noted that each of the modifications o fthe present invention is basically the same, each having side walls ofappreciable width for a portion of their height and with the said sidewall free of the bottom or base of the carton. By this construction theobjects initially set forth are attained with a resultant carton havinggreater ease in erection and considerably greater rigidity and strengthin the erected carton.

What is claimed is:

1. In a carton of the class described formed from a single blankcomprising` a base member, side walls each formed from an extension fromopposite edges of the base and each having for a portion of its height agenerally rectangular tubular cross section including an outer, top,inner and bottom wall member hingedly connected to one another through aglue flap hingedly projecting from the bottom wall member and at tachedto one of .said inner and outer wall members, said wall member carryingthe glue flap being integrally hingedly connected to the edge of thebase member, said inner and outer wall members each having a portionthereof extending above the top wall member to form shouldersintermediate the height of the side walls. end walls formed fromextensions from the remaining edges of the base member each including aninner and an outer wall member, corner pieces adapted to be folded onthemselves and connecting the adjacent ends of the side walls outermembers and the end walls outer members and embraced by the said endwalls inner and cuter wall members, and means for locking the walls inerected positions.

-2. In a carton of the class described formed from a single blankcomprising a base member, side walls each formed from an extension fromopposite edges of the base and each having for a portion of its height agenerally rectangular tubu- `lar cross section including an outer, top,inner and bottom wall member hingedly connected to 5o one anotherthrough a glue flap hingedly projecting from the bottom wall member andattached to one of said inner and outer wall members, said wall membercarrying the glue flap being integrally hingedly connected to the edgeof the base member, said inner and outer wall members each having aportion thereof extending above the top wall member to form shouldersintermediate the height of the side walls, end walls formed fromextensions from the remaining edges s0 of the base member each includingan inner and an outer wall member,V corner pieces adapted to be foldedon themselves and connecting the ad- -jacent ends of the side wallsouter members and the end walls outer members and embraced by the saidend wall inner and cuter Wall members, means for locking the walls inerected positions, and a flap substantially coextensive in area with thebase member carried by one of said end wall inner wall members andsuperimposed on said 7o base member.

' 3. In a carton of the class described formed from a single blankcomprising a base member, side walls each formed from an extension fromopposite edges ofthe base and each having for a portion of its height agenerally rectangular tubular cross section including an outer, top,inner and bottom wall member hingedly connected to one another through aglue iiap hingedly projecting from the bottom wall member and attachedto one of said inner and outer wall members, said wall member carryingthe glue nap being integrally hingedly connected to the edge of the basemember, said inner and outer wall members each having a portion thereofextending above the top wall member to kform shoulders intermediate theheight of the side walls, end Walls formed from extensions from theremaining edges of the base member each including an inner and an outerlWall. member, corner'pieces adapted to be folded on themselves andconnecting the adjacent ends of the side walls outer members and the endwalls outer members and embraced by the said end walls inner and outerwall members, means `for locking the walls in erected positions, a napsubstantially coextensive in area with the base member carried by one ofsaid end walls inner wall members and superimposed on said base member,and means for locking the flap in position comprising locking lugsextending laterally of the flap, and elongated apertures in the sideWalls inner wall members receiving said flap locking lugs.

1i. In a carton of the class described formed from a single blank`comprising a base member, side walls each formed from an extension fromopposite edges of the base and each having for a portion of its height agenerally rectangular tubular cross section including an outer, top,inner and bottom wall member hingedly connected to one another through aglue flap hingedly projecting irom the bottom Wall member and attachedto one of said inner and outer wall members, said wall member carryingthe glue ap being integrally hingedly connected to the edge of the basemember, said inner and outer Wall members each having a portion thereofextending above the top wall member to form shoulders intermediate theheight of the side walls, end walls formed from extensions from theremaining edges of the base member ea'ch including an outer, top andVinner wall member, corner pieces between the adjacent ends of the sidewalls outer Wall members and the end Walls outer wall members adapted tobe folded on themselves and disposed within the end walls outer, top andinner Wall member, and end wall braces of generally rectangular tubularcross section carried by the side walls corner pieces and disposedwithin the end walls outer, top and inner wall members for verticallyand horizontally bracing the said end walls. A

5. In a carton of the class described formed .from a single blankcomprising a base member, side walls each formed from an extension fromopposite edges of the base and each having for a portion of its height agenerally rectangular tubular cross section including an 'cute-r, top,inner and bottom Wall member hingedly connected to one another through aglue ap hingedly projecting 'from the bottom wall member and attached toone of said inner and outer wall members, said wall member carrying theglue flap being integrally hingedly connected to the edge of the basemember, said inner and outer wall member each having a portion thereofex- 1G end walls braces of generally rectangular tubuiar cross sectioncarried by the side walls and disposed within the end walls outer,l topand inner wall members for vertically and horizontallyx 5 bracing thesaid end walls members, and means for locking the walls in erectedpositions.

6. In a carton oi' the class described formed from a single blankcomprising a base member, side walls each formed from an extension :fromopposite edges of the base and each inciuding an outer wall member andan inner wali mem ber hingedly connected at their upper ends, said wallmembers contacting one another forr a porl tion of their heightdownwardly from their hinged connection, and said outer wall memberbeing outwardly spaced from said inner wall member for the remainingportion oi their height, a top wall member bridging the space betweensaid inner and outer wall members and forming a shoulder along andexteriorly of the side wall, a bottom wall member and a glue nap securedto the'outer wall member, end walls each formed from an extension fromthe remaining edges of the base 4member and each including an outer, topand inner wall member, said end walls outer and inner wall members beingof a height equai to the height of the side walls, and oi' a length,respectfully equal to the distance across `the A side walls outermembers and the distance be 30 said end walls top wall members of alength equal totheir outer end. wall members and of? appreciable width;whereby said top wall mem bers outwardly of the side walls inner wallmema bers and for the width thereof overlies the side walls shouldersina plane thereabove to provide cover holding lugs on the carton, andcooperating means on said side and end walls 'for locking same inerected positions,

7. In a carton oi the class described formed from a single blankcomprising a base` member, side walls each formed from an extension from`opposite edges of the base and each including an outer wall member andan inner wali mem'a ber hingedly connected at their upper ends, saidwall members contacting one another ior a pore tion of their heightdownwardly from their hinged connection, and said outer wall member.lbeing outwardly spaced from said inner wall member 5o for the remainingportion oi theirheight, a top wall member bridging the space betweensaid inner and outer wall members and forming a shoulder along andexteriorly of the side wall, a bottom wall member and a glue nap securedto the 'outer wall member, end walls each formed from an extension fromthe remaining edges of the base member and each including an outer, topand inner wall member, said end walls outer l and inner wall membersbeing oi a height equal 00* to the height of the side walls and of alength, respectively, equal to. theI distance across the side wallsouter members and the distance be tween the side walls inner wallmembers, and said end walls top wall members of a length g'equal totheir outer end wall members and of appreciable Width, whereby said topwall members outwardly of the side walls inner wall members and for thewidth thereof overlies the side walls shoulders in a plane thereabove toprovide cover-holding lugs on the carton, cooperating means on said sideand end walls for locking same in erected positions, and acover for saidcarton held in position by the projecting coverholding lugs.

tween the side walls inner wall members, and

s. In a carton of the dass described formed membersvcontacting oneanother for a portion of their height downwardly from their hingedconnection, and said outer wallimember being outwardly spaced from saidinner lwall member for the remaining portion of their height, a top wallmember bridging the space between said` inner and outer wall members andforming a shoulder along and exteriorly of the side wall, a bottom wallmember and a glue ap secured to the outer wall member, walls each formedfrom an extension from each of the remaining edges of the base memberand each including an outer, tcp and inner Wall member,A said end wallsouter and inner wall mem-bers being of a height equal to the height ofthe side walls and of a length, respectively, equal to the distanceacross the side walls outer members and the distance between the sidewalls inner wall members, and said end walls top wall members of alength equal to their outer end wall members and of appreciable width,whereby said top wall members outwardly of the sidewalls inner wallmembers and for the width thereof overlies the side walls shouldersin aplane thereabove. to provide cover-holding lugs on the carton,cooperating means on -said side and end walls for locking same inerected positions, a cover for said carton comprising a body portion ofan area equal to that embraced between the side and end Walls outer wallmembers, and an interengaging lug at each corner of the cover bodyportion for interengagement with the projecting cover-holding lugs ofthe carton.

9. In a carton of the class described formed from a single blankcomprising a base member, side walls each formed from an extension fromopposite edges of the base and each including an outer wall member andan inner wall member hingedly connected at their upper ends, said wallmembers contacting one another for a portion of their height downwardlyfrom their hinged connection and said outer wall member being outwardlyspaced from said inner wall member for the remaining portion of theirheight, a top wall membembridging the space between said inner and outerwall members and forming a shoulder along and exteriorly of the sidewall, a bottom wall member and a glue flap secured to the outer wallmember, end walls each formed from an extension from the remaining edgesof the 'base member and each including an outer, top and inner wallmember, said end walls outer and inner wall members being of a heightequal to the height of the side walls and of a length, respectively,equal to the distance across the side walls outer wall members and thedistance between the side walls inner wall members, and said end wallstop wall members of a length equal to their outer end wall members andof appreciable width, whereby said top wall mem? bers outwardly of theside Walls inner wall members and for the width thereof overlies theside walls shoulders in a plane thereabove to provide cover-holding lugson the carton, cooperating means on said side and end walls for lockingsame in erected positions, a cover for said carton comprising a bodyportion of an area equal to that embraced between the side and end wallsouter wall members, downward projections from two edges of the coverbody portion adapted to engage the carton shoulders, and an interenRaging lug at each end of the projections lfor terengagement with thecover-holding lugs ofthe'jfcarton. 5 l0. In a carton of the classdescribed formed from a single blank comprising a base member, sidewalls each formed from an extension from opposite edges of the base andeach including an outer wall member and an inner wall'member hingedlyconnected at their upper ends, said wall members contacting one anotherfor a portion of their height downwardly from their hinged connectionand said inner wall member being inwardly spaced from said outer wallmember for the remaining portion of their height, a top Wall memberbridging the space between said inner and outer wall members and forminga shoulder along and interiorly of the side wall, a bottom wall memberand a glue nap secured to the outer wall member, end walls each formedfrom an extension from the remaining edges of the base member and eachincluding an outer and inner wall member, said outer and inner wallmembers being of a height equal to the height of said side walls andhingedly connected at their upper ends, said end walls inner and outerwall members contacting one another for a portion of their heightdownwardly from their hinged connection and saidinner wall members beingspaced inwardly from their outer wall members for the remaining portionof their height, top wall members bridging the space betweenlsaid endwalls inner and outer wall members and forming a shoulder along 'andinteriorly of the endwalls in alignment with the shoulders of the sidewalls, and cooperating means on said side and end walls for locking samein erected positions.

l1. In a carton of the class described formed from a single blankcomprising a base member, side walls each formed from an extension fromopposite edges of' the base and each including an outer wall member andan inner wall member hingedly connected at their upper ends, said wallmembers contacting one another for a portion of their height downwardlyfrom their hinged connection and said inner wall member being inwardlyspaced from said outer wall member for the remaining portion of theirheight, a top wall member bridging the space between said inner andouter wall members and forming a shoulder along and interiorly of theside wall, a bottom wall member and a glue flap secured to the outerwall member, end walls each formed from an extension from the remainingedges of the base member and each including an outer and inner wallmember, said outer and inner wall members being of a height equal to theheight of said side walls and hingedly connected at their upper ends,said end walls inner and outer wall e0 members contacting one anotherfor a portion of their height downwardly from their hinged connectionand said inner wall members being spaced inwardly from their outer wallmembers for the remaining portion of their height, top wall memot bersbridging the space between said end walls inner wall members spacedportions and forming a shoulder along and interiorly of the end walls inalignment with the shoulders of the side walls, and cooperating means onsaid side and end Walls 7 0 for locking same in erected positions,comprising locking lugs projecting from each end Wall inner wall membercontacting portion for engaging behind the side walls top wall members.

12. In a carton of the class described formed 75 from a single blankcomprising a base member.

Cil

' 13 side walls each formed from an extension from opposite vedges ofthe base and each including an outer wall member and an inner wallmember hingedly connected at their upper ends, said wall memberscontacting one another for a portion of their height downwardly fromtheir hinged connection and said inner wall member being inwardly spacedfrom said outer wall member for the remaining portion of their height, atop wall member bridging the space between said inner and outer wallmembers and forming a shoulder along and interiorly of the side wall, abottom wall member and a glue ap secured to the outer wall member, endwalls each formed from an extension from theremaining edges of the basemember and each including an outer and inner wall member, said outer andinner wall members being of a height equal to the height of said sidewalls and hingedly connected at their upper ends, said end walls innerand outer wall members contacting one another for a portion of theirheight downwardly from their hinged connection and said inner wallmembers being spaced inwardly from their outer wall members for theremaining portion of their height, top wall members bridging the spacebetween said end walls inner wall members spaced portions and forming ashoulder along and interiorly of the end walls in alignment with theshoulders of the side walls, and cooperating means on said side and endwalls for locking same in erected positions, comprising said spacedportions of each side wall inner side walls each formed from anextension from opposite edges of the base and each including an outerwall member and an inner wall member hingedly connected at their upperends, said wall members contacting one another `for a portion of theirheight downwardly from their hinged connection and said inner wallmember being inwardly spaced from said outer wall member for theremaining portion of their height, a top wall member bridging the spacebetween said inner and outer wall members and forming a shoulder alongand interiorly of the side wall, a bottom wall member and a glue flapsecured to the outer wall member, end walls each formed from anextension from the remaining edges of the base member and each includingan outer and inner wall member, said outer and inner wall members beingof a height equal to the height of said side walls and hingedlyconnected at their upper ends.

said end walls inner and outer wall members" contacting one another fora portion of their height downwardly from their hinged connection andsaid inner wall members being spaced inwardly from their outer wallmembers for the remaining portion of their height. top wall membersbridging the space between said end walls inner wall members spacedportions and forming a shoulder along and interiorly oi the end walls inalignment with the shoulders of the side walls, and cooperating means onsaid side and end walls for locking same in erected positions,comprising said spaced portions of each side wall inner wall memberhaving an aperture therein adjacent each end, and a locking lug pro`jecting from each side of each end wail inner wall member inwardlyspaecdpcrtion to: engagc- 75 14 ment in side walls inner wall membersapertures. and locking lugs projecting from each end wall inner wallmember contacting portion for engaging behind the side walls top wallmembers. 14. In a carton of the class described formed from a singleblank comprising va base member. side walls each formed from anextension from opposite edges of the base and each including an outerwall member and an inner wall member hingedly connected at. their upperends said wall members contacting one another for a portion of theirheight downwardly from their hinge connection and said inner wall memberbeing inwardly spaced from said outer wall member for the remainingportion of their height, a top'wall member 'bridging the space betweensaid innerJ and outer' wall members and forming a shoulder along andinteriorly of the side wall, a bottom wall member and a glue flapsecured to the outer wall member, and walls eachformed from an extensionfrom the remaining edges of the base member and each including an outer,top and inner wall member, said end walls outer and inner wall membersbeing of a height equal to the height of the side walls and of a length,respectively,

equal to the distance across the side walls outer wall members and thedistance between the side walls inner wall members, and said end wallstop wall members of a length equal to their outer end wall mem-bers, andcooperating means on said side and end wall for locking same in erectedpositions. j

15. In a carton of the class described formed from a single blankcomprising a base member,

. side walls each formed from an extension from opposite edges -of thebase and each having for a portion of its height a generallyrectangular` Y tubular cross section including an outer, top, inner andbottom wall member hingedly connected to one another through a glue aphingedly project- V ing from the bottom wall member and attached to oneof said inner and outer wall members, said walll member carrying theglue nap being integrally hingedly connected to the edge of the basemember, said inner and outer wall members each having a portion thereofextending above the top wall member to form shoulders intermediate theheight of the side walls inner wall members. end walls formed fromextensions from cluding an inner and an outer wall member..cor nerpieces adapted to be foldedy on themselves and connecting the adjacentends of the side walls outer members and the end walls outer members andembraced .by the said end walls inner-and outer wall members, and meansfor locking the walls in erected positions. f WILLIAM P. FRANKENS'I'EIN.

REFERENCES CITED The following references are of record in the ille ofthis fpatent:

UNrrED STATES PATENTS Number l Name Date Re. 21,158 Frankenstein July25, 1939 1,262,508 Kaufman Apr. 9, 1918 1,310,006 Diamond July 15, 19192,116,513 Frankenstein May 10, 1938 7o 2,301,575 Otten Nov. 10, 19422,313,376 Ullman Mar. 9, 1943 2,388,243 Arneson Nov. 6, 1945 2,397,934Frankenstein Apr. 9, 1946 2,444,497

Clarke July 6, 1948 the remaining edges of the base member each in-

